Aha! You have fallen right into my trap! I succesfully created that feeling of a relentless uphill battle without making it so hard that you can’t see most of the content (the Crystals are the final enemy you encounter and if you see them it pretty much means you won).
Anyway yeah I need to make some upgrades stronger, the damage one in particular is percentage based and probably needs a significant change.
Thanks for checking it out!